Also added to the guest list for Wednesday's event are James Denton, Greg Grunberg, Alyson Hannigan, Diane Kruger, Cory Monteith, Jeff Probst, Rascal Flatts, Eli Roth and Christian Slater, the network said Tuesday.
The prize presentation, which recognizes the fan favorites in music, film and television for 2009, is to be broadcast live from the Nokia Theater L.A. live on CBS.
The show is also to feature a performance by Cobra Starship with special guest Nicole Scherzinger.
Queen Latifah is presiding over the festivities.
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